Trying for first baby

Hi im susan and im 30 years old trying for my first baby. I ovulate on the 9th June and had sex every day from the 5th-14th. Iv had no spotting and my period is due in 5 days. Iv had a dull heavy feeling in my lower abdomen similar to period pains for 3 days now and was wondering if anyone's ever had this so far away from when their period is due. I'm hoping my eriod doesn't come in 5 days time. My breasts are sore and I feel sick some times. Thanks in advance x