There are various pregnancy kits available for checking, so you can buy one, follow the instructions to check for pregnancy just to be sure.
Explanation:
The hormones in our body keep on changing, which majorly affects the menstrual cycle in women. Even having sex or taking pills and some other things may cause a change in hormones and result in a delay in menstruation or may sometimes cause them to come early. So, don't need to worry about it, buy any pregnancy kit to check it or just wait for some time and consult any gyncologist for the same. Also, always consider using protection like condoms in order to prevent getting unwanted pregnancy in future.
