why???

so I just had my most fertile day yesterday according to this calendar. my husband and I have been hitting it hard this past week as I've been off work (work nights) and it's my ovulation period (which he didn't know ☺) and all of a sudden today I feel bloated, my boobs hurt so bad like they are so tender, I've got pelvic pain, headache, indigestion. It's just so not normal for me to feel this way at all let alone 1 day after my most fertile date in which we didn't really have sex.