Unusual Pregnancy Symptoms You Might Not Have Heard of

Pregnancy can cause some strange symptoms, but some are more well known than others. Here are some of the more unusual ones you can look out for. That said, many pregnancy symptoms are similar to the signs your period is on its way. The best way to work out which is which? Keep a log in your Femometer app so you know your typical period symptoms.


Time: 7-14 days after ovulation

A lesser-known pregnancy symptom is constipation. Constipation can be an early pregnancy sign as higher levels of progesterone slow down the digestive system to ensure all nutrients can be taken from the food you eat. This can unfortunately leave you feeling a little bunged-up. Hormones can also be blamed for this symptom as they relax the muscles that are involved in pushing waste through the body. Drinking plenty of water and taking regular exercise can help ease constipation symptoms.

Increased urination

Time: 12 - 21 days past ovulation

Most people nip to the loo for a wee 6-8 times a day, dependant on how well hydrated they are. Some women find that on becoming pregnant this increases to 10 - 12 times a day. In the final trimester this is due to the baby pressing on the bladder but in the first trimester this happens due to hormones and blood volume in the body. As the blood volume increases, the kidneys have to process and expel more fluid.

Funny taste in your mouth

Time: 10 days past ovulation onwards

Many women report a funny metallic taste in their mouth during pregnancy. This symptom, which is often described as ‘like chewing aluminum foil’ can be noticeable before you even see a positive home pregnancy test. The medical name for the symptom is Dysgeusia, and this also refers to any changes in your tastebuds you may experience. This symptom can mostly be attributed to changes in estrogen, which plays a big part in controlling and moderating taste.

Sensitive to tastes/smell

Time: 10 days past ovulation onwards

In early pregnancy you may find yourself with a heightened sense of smell and taste. You may also notice yourself being put off foods you usually enjoy and perfumes you normally wear. As with so many symptoms in early pregnancy this can be attributed to hormones, in this case estrogen which has a big part to play in the control of taste and smell. It’s thought that this symptom could also be partly to blame for nausea experienced in early pregnancy.

Increased sex drive

Time: 10 days past ovulation onwards

Some women find that their sex drive increases in the first few weeks after conception. This is believed to be due to an increase in blood flow to the genitals and breasts. 


Time: 7 days past ovulation onwards

An unfortunate early pregnancy symptom is gas… which is fine when we’re chilling at home but not so great when we’re at work or out in public. Flatulence in early pregnancy can be blamed on increased progesterone. Progesterone relaxes our muscles, including the muscles in the digestive system which slows down digestion, meaning there’s more time for gas to build up.


Time: 7 days past ovulation onwards

Once again, we can blame progesterone for another of the unpleasant early pregnancy symptoms. The discomfort of heartburn during very early pregnancy is caused by progesterone which relaxes the muscles in the body. One of the muscles affected is the valve that usually stops acid from the stomach traveling back up through the esophagus.

Dry mouth

Time: 10 days past ovulation onwards

Some women find that they experience a dry mouth in early pregnancy. This is caused by the fact that the body is gearing up to support a baby and needs to increase its blood volume by half, which takes a lot of fluid! Unfortunately, having a dry mouth and drinking more water may also lead to needed to go to the loo more often… another early pregnancy symptom! 

Cold symptoms

Time: 9 days past ovulation onwards

Some women find that they experience cold symptoms early on in pregnancy. A runny or blocked nose can be caused by an increase in estrogen which inflames the membranes in the nasal passage. This can cause changes in the breathing, such as breathing through your mouth when you sleep, in turn, causing the feeling of a sore throat.

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