I think you have good chances! During an interview or any supplemental applications (if applicable), maybe try to explain why you did bad that first semester and then what you did and how you changed and got a 4.0 for the following semesters. I think it's best to address it rather than brush it under the rug and hope they don't notice.
And a 70 on the PCAT is considered competitive so you're good on that too! I agree with the other poster to maybe apply to a few more schools though, just in case!