<s>[INST] we inter-coursed on 11th to 15th days after the period to become pregnant . Is it advisable to travel by bus or by car (on 28th day). [/INST] helloo, Having inter-course between 11 to 15 day doesnt confirm that u r going to conceive for sure. Travelling by bus or car is not going to create any issue until it is a rash one.its necessary to keep precautions. Better consult your gynaecologist once. </s>